A new E400 sedan replaces last year's E550 sedan. The E400 is powered by a turbocharged V6, rather than a V8, which should improve fuel economy in the mid-sized luxury sedan. Though the new engine is less powerful than the one it replaces, it makes up for the power deficit with greatly improved efficiency. For buyers who must have V8 power with their E-Class sedan, the E63 is still available.

The E-Class offers a wide range of models that are each quite different, yet they each have plush cabins, some of the world's best safety innovations, and a reputation like no other. All of the E-Class models also have great ride quality and a relatively quiet interior--even the Cabriolet. The E63 AMG performance model packs an intense level of performance in an otherwise somewhat staid luxury package. There's also a choice between two "green" powertrains --a diesel and a hybrid.